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Question

Consider the differences between hormone and nervous system mentioned below and choose which ones are correct:

Hormone Nervous System
I. Hormone is physical coordinator Nervous system is chemical coordinator
II. The function of hormone occurs at a slow pace The function of nervous system is quick and instant
III. The effect of hormone is long lasting The effect of nervous system is short lasting
IV. Hormone remains unchanged after its function is over Nervous system gets destroyed after its function is over

Options:

(a) I, IV

(b) I, III

(c) II, III

(d) II, IV

WBBSE Class X Life Science 01 (c) Animal Hormone 01 (d) Nervous System 1 Marks 2024

Answer

(c) II, III

Explanation:

  • Hormones act as chemical coordinators in the body, regulating various physiological activities through endocrine glands. Their effects are slow but long-lasting because hormones get transported via blood and act on distant target organs.
  • The nervous system functions as a physical coordinator by transmitting nerve impulses rapidly and producing instant but short-lived effects. Nervous impulses are electrical signals conducted through neurons.
  • Hormones do not remain physically unchanged after their action; they get destroyed or metabolized. The nervous system components like neurons remain structurally intact after transmitting impulses.
  • Thus, statements II and III correctly contrast hormone and nervous system functions.

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